Which one of the sentences in the details is grammatically correct?
Are sentences in details grammatically correct?
Answer: no

Is it illegal to date 17 year old girl?
Can a 19 year old date a 16 year old?
Answer: no

When is it too late to learn the piano?
I am 16 years old. Is it too late to start learning piano?
Answer: yes

How can I make hard water from distilled water?
How can I convert hard water to soft water?
Answer:
no